Gamoneda Formation

The Gamoneda Formation is an Emsian geologic formation of southern Bolivia. The approximately 340 m thick formation comprises marine micaceous grey siltstones and burrowed grey sandstones and shales.

Fossil content
The formation has provided the following fossils:


 * Acastoides gamonedensis
 * Australocoelia palmata
 * Australospirifer hawkinsi
 * Australostrophia mesembria
 * Bainella (Belenops) insolita
 * Cryptonella baini
 * Deltacephalaspis (Deltacephalaspis) comis
 * Deltacephalaspis (Deltacephalaspis) retrospina
 * Deltacephalaspis (Prestalia) tumida
 * Derbyina jamesiana
 * Gamonedaspis scutata
 * Kozlowskiaspis (Romanops) australis
 * Notiochonetes falklandica
 * Phacopina convexa
 * Plicoplasia planoconvexa
 * Protoleptostrophia concinna
 * Pustulatia curupira
 * Schizostylus (Curuyella) granulata
 * Tarijactinoides jarcasensis
 * Burmeisteria sp.
 * cf. Francovichia sp.
 * Calmoniidae indet.
 * Eurypterida indet.